Home / 518,826.40-778,567.65-305,593.90

Finding the Fourth Proportional to 518,826.40, 778,567.65 and 305,593.90

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Solution

The fourth proportional to 518,826.40, 778,567.65 and 305,593.90 is: 458,584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,826.40 : 778,567.65 = 305,593.90 : x
  2. Step 2: Convert to fraction form
    518,826.40/778,567.65 = 305,593.90/x
  3. Step 3: Cross multiply
    518,826.40x = 778,567.65 × 305,593.90
  4. Step 4: Simplify right side
    518,826.40x = 237,925,524,577.34
  5. Step 5: Solve for x
    x = 237,925,524,577.34/518,826.40
  6. Step 6: Final answer
    x = 458,584.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.